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Apr
13
comment Supercomputer Vs Human Brain
In my opinion this is a much better answer than Devashish Das (OP)'s answer which got 15 up votes and is chosen as an answer at the moment.
Apr
2
comment Is it possible for a human to wake up in a wrong way?
do you have references for this "feel different" claim?
Mar
24
comment Is there a biological neuron that spikes in response to hyperpolarizing currents?
Search for "rebound excitation" or "rebound spiking".
Mar
2
comment Are all dinosaur bones radioactive?
Here's one theory: truthisscary.com/2012/05/…
Mar
1
comment Why sigmoid curves appear in quantitative analysis of many biological phenomena?
Tons of examples in psychophysics and neuroscience...
Feb
28
comment if the load is removed from an eccentrically contracting muscle, will it start contracting concentrically?
It is not clear to me what you are asking.
Feb
27
comment What (open) software there are for simulating behaviour of human (cortical) neurons?
Sure, you can regularize your solution, and put extra constraints to get a better solution, but do you really recover the behavior of the cortical neurons with a thousand dipole model? Are dipoles the right representation for neural computation? We don't know the answer, but I'm betting they are insufficient.
Feb
27
comment What (open) software there are for simulating behaviour of human (cortical) neurons?
Perhaps I misread OP's question. Upon re-reading, OP only says "simulating the behaviour of human cortical neurons", I guess it could be larger scale model. I'm editing my answer.
Feb
27
comment What (open) software there are for simulating behaviour of human (cortical) neurons?
Thanks for the feedback! Yes, of course you can do source localization, assuming there are a few dipoles (or under other simplifying assumptions), but it's difficult to connect to the neuronal level simulation as the OP wants to do. (Sorry. I don't know how to turn your answer into a comment.)
Feb
20
comment What is an auditory upward sweep?
It just means a sound that starts at a low frequency and goes up to higher frequency like a whistle sound. Perhaps someone can give you an example sound file and/or a spectrogram representation of it.
Feb
13
comment What actually are thoughts?
But what are thoughts? :) I don't think the question is well defined yet. If you indicate a specific "thought" or "thought process" in mind, you may get a better answer.
Feb
6
comment Why aren't circadian rhythms exactly 24 hours long?
Perhaps because the optimal cycle of life is not 24 hours due to seasonal changes and migrations? It is quite difficult to make biological oscillators with very long periods precise, and it doesn't need to be, because one can entrain an oscillator with external stimuli. And as you mentioned in the comments, variations can be helpful in many ways.
Jan
21
comment What is the limit of time resolution in fMRI?
I don't think it excels in spatial domain either. Though there has been a recent report about correlations at a single neuron level. See Schulz, K., Sydekum, E., Krueppel, R., Engelbrecht, C. J., Schlegel, F., Schroter, A., Rudin, M., and Helmchen, F. (2012). Simultaneous BOLD fMRI and fiber-optic calcium recording in rat neocortex. Nat Meth, 9(6):597-602. dx.doi.org/10.1038/nmeth.2013
Dec
19
comment What is the science behind the inaccurate perception of colors?
@ChrisStronks pigment depletion can be thought of as a form of adaptation. I guess 'gain control' would be a wrong analogy though. Thanks for your comment and answer.
Nov
5
comment Why does strenous exercise cause vision of “lights”?
interesting that you see hexagonal shapes. Hexagons often appear in 2D sensory processing due to its relation to sphere packing.
Oct
20
comment Which organs in the body are responsible for measuring temperature?
en.wikipedia.org/wiki/Thermoregulation#In_humans
Oct
15
comment Can connections between neurons be weakened?
see en.wikipedia.org/wiki/Long-term_depression
Oct
15
comment How does the brain avoid feedback loops?
well balanced feedback loops create oscillations as well...
Oct
12
comment Mechanisms of extracellular stimulation of neurons
@WYSIWYG I think you should write a longer answer if you have time. :)
Oct
12
comment Hair loss in a nuclear submarine?
The question is not clear. Can you improve it by providing more context and writing out what you are asking? Specifically, are you talking about nuclear submarines?